A soldier who survived a roadside bomb blast while driving a light tank in Afghanistan has been found hanged while at home on leave. Trooper Robert Griffiths, 24, was one of three soldiers who walked away unhurt from a potentially deadly roadside blast in November 2011.

The soldier, with 1st the Queen's Dragoon Guards, later described surviving the blast from the improvised explosive device (IED) as a "buzz". At the time he was driving an upgraded 35-tonne Scimitar Mk2 light tank, with heavy armour, on routine patrol in Nahr-e-Saraj in Afghanistan's Helmand province. Trooper Griffiths, who serves in what is known as the Welsh cavalry, went on to praise the role the new Scimitar played in protecting them.

He was found hanged at his parents' home in the Gower village of Bishopston, near Swansea, south Wales, last Saturday evening.

South Wales police have confirmed that they are investigating the death of a 24-year-old man at the location.

A spokesman said the soldier's family had been informed and that the death was not being treated as suspicious.

"Police are investigating the death of a soldier who was serving with 1st the Queen's Dragoon Guards," an Army spokesman told BBC Wales online. "Our thoughts are with his family and friends at this time."

Trooper Griffiths finished a seven-month tour of duty in Afghanistan in April last year. His regiment is based in barracks in Paderborn, Germany, but he was back in the UK on leave over the Christmas period.

Trooper Griffiths's encounter with the potentially fatal IED was highlighted at the time in a Ministry of Defence online news release. Headlined "Soldiers survive IED strike thanks to Scimitar", the story goes on to chronicle the vehicle's lifesaving armour upgrade.

It followed a period in Afghanistan when British patrol vehicles were perceived as underprotected and putting the lives of soldiers at risk.